4.54 billion years<span>The "best" age for the Earth is based on the time required for the lead isotopes in four very old lead ores (galena) to have evolved from the composition of lead at the time the Solar System formed, as recorded in the Canyon Diablo iron meteorite. This "model lead age" is <span>4.54 billion years</span></span>
There are cliffs, bays, caves, etc...
The answer to this is Rural Communities of developing countries.
So B is the answer
Answer:
32
Explanation:
stuff and things x chromosome
